Activated sludge usually employs an aeration period of ________________

Related MCQs

• Activated sludge process degrade organics and _________
• What is required to keep the activated sludge suspended?
• How does the activated sludge appear?
• ________ combines aeration basin and secondary clarifier into single unit.
• When the aeration system shuts off, the basin begins to perform as a ______
• Which section of CWA regulates land disposal of sludge?
• Which of the following gases are produced in large amounts during sludge digestion?
• Primary sludge includes __________
• What is the term used for reuse of sewage sludge?
• What is the percentage of aerobically digested sludge?